By following this practice it is possible to make reproducible flushes when using the same raw materials. Therefore, if someone wishes to evaluate the effect a different raw material has on a flush, it is possible to evaluate this effect by noting the change that occurs from a control flush to the experimental flush. This change can be, but is not limited to; such things as strength after vacuum, grind, grit, gloss etc. This practice can be used by ink companies, pigment companies or varnish companies. This practice is not meant to give absolute values but is meant to be used as a relative practice in which a control flush is made using a standard formula and the experimental flush is compared to the control flush. This practice is not meant to determine the absolute performance of a formula in production. Again it can be used to give a relative idea of how a formula will perform in production when a correlation has been established between laboratory flushing and production flushing.

1. Scope

1.1 This practice covers guidelines for the evaluations of flushing vehicles for pigment dispersion using a vacuum modified sigma blade mixer, or vacuum flusher.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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